H. C. FALL. 143 



sides sinuately parallel in front, deeply constricted near the base, and suddenly 

 narrowed at the front angles to a fine marginal bead, which is of about the width 

 of the neck ; surface very finely subrugosely punctate like the head, disk with a 

 broad impression each side anteriorly, these impressions subcontinent at the 

 middle ; and a transverse subbasal impressed line which is deeper at its extremi- 

 ties. Elytra elongate-oval, about two and one-half times as wide as the thorax, 

 and more than twice as long as the head and thorax combined ; base minutely 

 rectangular each side, humeri not defined, side margin strongly arcuate when 

 viewed laterally ; each with eight rows of coarse, deep, closely placed punctures; 

 intervals very narrow, nearly flat, except the sixth, which is costate throughout; 

 there is a small but distinct lateral transverse impression on each elytron before 

 the middle, beginning at about the third stria. Epiplurse rather feebly indexed 

 and marked with a similar row of punctures. Scutellum not distinctly entering 

 the disk of the elytra. Under surface impunctate; metasternum shorter than 

 the first ventral, the latter with a deep, transverse, nearly straight impressed line 

 just behind the coxae, and reaching nearly to the sides of the body. Ventral seg- 

 ments 2-4 slightly deceasing in length, fifth a little longer. Front coxae dis- 

 tinctly though rather narrowly separated ; middle coxse distant by about three- 

 fourths the coxal width. Hind coxal cavities not quite reaching the sides of the 

 body. Trochanters very long, arcuate, cylindrical. (PI. IV, figs. 37, 37«, 376). 

 Length 1.3 mm. 



Hab. — Florida (Crescent City — collection Hubbard and Schwarz). 

 Belon records it from Mexico. 



The identification of tbe two examples sent me by Mr. Schwarz 

 is made certain by a comparison with a type of unicostata kindly 

 sent me by Belon. 



In one of the Florida examples the abdomen is strongly ascend- 

 ing at the apex and the tip concealed ; in the other there is no sign 

 of this, and a small sixth segment is exposed. The specimens are 

 very likely male and female, but it is not possible to say if these 

 conditions are constant. 



REVELIERIA Perris. 

 This genus has hitherto contained only a single rare and curious 

 insect — R. genet Aube —which occurs in Spain, Corsica, Sardinia and 

 Northern Africa. The discovery in California of a second species 

 which is certainly congeneric is therefore of much interest. A 

 lengthy generic diagnosis is unnecessary, as there are but two char- 

 acters of fundamental importance, viz. : the connate elytra, with 

 coarse punctures arranged in more or less irregular series, apparently 

 twelve in number on each. Another character, so rare as to merit 

 especial mention, is the lateral extension of the labrum so as t,i 

 embrance the sides of the epistoma. I have observed the same 

 structure in Cartodere elegans and Adidemia watsoni, and it is 



TRANS. AM. ENT. SOC. XXVI. NOVEMBER, 1899. 



